Anatomic soft tissue repair

ABSTRACT

A method for repairing soft tissue. The method includes: forming a first bone hole; forming a second bone hole; connecting a first portion of the first bone hole to a second portion of the second bone hole to form a single bone bore; positioning at least a first anchor of a first suture construct at a distal end of the first bone hole, and positioning a second anchor of a second suture construct at a distal end of the second bone hole; connecting the first and the second suture constructs to the soft tissue; and drawing the soft tissue into the single bone bore with the first and the second suture constructs.

FIELD

The present disclosure relates to anatomic soft tissue repair.

BACKGROUND

This section provides background information related to the present disclosure, which is not necessarily prior art.

During soft tissue repair, such as anatomic tendon or ligament repair, soft tissue with a thin and elongated profile and cross-section is often inserted or pulled into round bone holes. Inserting or pulling long and thin soft tissue into a round bone hole can be difficult due to the mismatch in shape between the soft tissue and the bone hole. Methods and devices for providing a bone hole that approximates the long and thin shape of soft tissue would therefore be desirable. Multiple points of fixation for securing the soft tissue in the bone hole would also be desirable in order to increase the strength of fixation of the soft tissue in the bone hole.

SUMMARY

This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.

The present teachings provide for a method for repairing soft tissue. The method includes: forming a first bone hole; forming a second bone hole; connecting a first portion of the first bone hole to a second portion of the second bone hole to form a single bone bore; positioning at least a first anchor of a first suture construct at a distal end of the first bone hole, and positioning a second anchor of a second suture construct at a distal end of the second bone hole; connecting the first and the second suture constructs to soft tissue; and drawing the soft tissue into the single bone bore with the first and the second suture constructs.

The present teachings further provide for a method for repairing soft tissue. The method includes: inserting a first guide wire in a bone to define a first bone hole; inserting a second guide wire in the bone proximate to the first guide wire to define a second bone hole proximate to the first bone hole; enlarging a proximal portion of each of the first bone hole and the second bone hole such that the proximal portions of the first and the second bone holes are connected; positioning a first anchor of a first suture construct at a distal end of the first bone hole, and positioning a second anchor of a second suture construct at a distal end of the second bone hole; connecting a first suture of the first suture construct to the soft tissue, and connecting a second suture of the second suture construct to the soft tissue; and drawing the soft tissue into the proximal portions of each of the first and second bone holes by pulling first ends of the first suture construct to close a first loop of the first suture construct, and by pulling second ends of the second suture construct to close a second loop of the second suture construct.

The present teachings also provide for a system for repairing soft tissue. The system includes a chisel defining a first guide bore and a second guide bore. The chisel includes a chisel tip shaped to provide bone with a shape approximating a cross-sectional shape of soft tissue. The system also includes first and second suture constructs. The first suture construct includes a first anchor, a pair of first ends, a first loop, and a first needle. The second suture construct includes a first anchor, a pair of second ends, a second loop, and a second needle. The chisel is configured to receive through the first guide bore a first guide wire inserted into bone to form a first bone hole, and receive through the second guide bore a second guide wire inserted into bone to form a second bone hole. The first and the second bone holes are configured to be connected by reaming. The first anchor of the first suture construct is configured to be implanted in bone upon being inserted through the first guide bore and the first bone hole. The second anchor of the second suture construct is configured to be implanted in bone upon being inserted through the second guide bore and the second bone hole. Subsequent to threading the first needle and the second needle through the soft tissue and tying the first and the second suture constructs together, pulling the pair of first ends and the pair of second ends closes the first loop and the second loop respectively and pulls the soft tissue into the bone shaped by the chisel.

Further areas of applicability will become apparent from the description provided herein. The description and specific examples in this summary are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.

DRAWINGS

The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.

FIG. 1 illustrates insertion of a first guide wire into bone using a drill guide according to the present teachings;

FIG. 2 illustrates the first guide wire seated in the bone;

FIG. 3 illustrates insertion of a second guide wire into the bone using a chisel according to the present teachings to guide the second guide wire into the bone;

FIG. 4 illustrates the second guide wire seated in the bone;

FIG. 5 illustrates reaming the bone over the first and second guide wires with a reamer;

FIG. 6 is a perspective view of the reamed bone;

FIG. 7 illustrates the chisel seated on the first and second guide wires after the bone has been reamed;

FIG. 8 illustrates the chisel being pounded into the bone in order to form a bone hole having a cross-sectional shape similar to soft tissue, such as a tendon;

FIG. 9 illustrates the chisel positioned at an inner cortical bone layer;

FIG. 10 illustrates the bone hole formed in the bone using the chisel;

FIG. 11A illustrates an inserter according to the present teachings with a first suture construct according to the present teachings mounted thereto, the inserter extending through the chisel to position an anchor of the suture construct against the cortical bone layer on a side thereof opposite to a cancellous bone layer;

FIG. 11B illustrates the suture construct apart from the inserter;

FIG. 12 illustrates use of the inserter to deploy the anchor from a distal end of the inserter;

FIG. 13 illustrates decoupling of the suture construct from the inserter;

FIG. 14 illustrates positioning another anchor of another suture construct according to the present teachings using another inserter;

FIG. 15A illustrates the first and second suture constructs coupled to soft tissue, such as a tendon;

FIG. 15B illustrates the first and the second suture constructs anchored within a single cortical bone hole;

FIG. 16A illustrates ends of the suture constructs being pulled in order to draw the soft tissue into the bone hole;

FIG. 16B illustrates additional suture constructs according to the present teachings for drawing and securing the soft tissue within the bone hole;

FIG. 16C illustrates yet additional suture constructs for securing two separate portions of soft tissue within the single bone hole;

FIG. 17 illustrates a preliminary guide wire inserted into the bone according to an additional method of the present teachings;

FIG. 18 illustrates the chisel supported at the bone with the preliminary guide wire, and insertion of the first guide wire into the bone using the chisel as a guide;

FIG. 19 illustrates use of the chisel to guide the second guide wire to the bone;

FIG. 20 illustrates reaming the bone with a reamer;

FIG. 21 illustrates the bone after having been reamed as illustrated in FIG. 20;

FIG. 22 illustrates the chisel being pounded into the bone guided by the first guide rod in order to shape the bone;

FIG. 23 illustrates the chisel being pounded further into the bone guided by the second guide rod in order to shape the bone;

FIG. 24 illustrates the bone after the chisel has been pounded and pushed through the outer cortical bone layer and cancellous bone layer to the inner cortical bone layer;

FIG. 25 illustrates another method according to the present teachings including insertion of a preliminary guide wire through an outer cortical bone layer and into the cancellous bone layer;

FIG. 26 illustrates the bone after having been reamed over the preliminary guide wire;

FIG. 27A illustrates another drill guide according to the present teachings, the drill guide seated against the bone such that a center post of the drill guide extends into the reamed bone, the first and second guide wires are guided to the bone by the drill guide;

FIG. 27B is a perspective view of the drill guide of FIG. 27A;

FIG. 28 illustrates the bone subsequent to the drill guide having been removed therefrom and the bone having been reamed over the first and second guide wires;

FIG. 29 illustrates a chisel according to the present teachings for shaping the bone to provide a bone hole with a shape that corresponds to soft tissue; and

FIG. 30 illustrates the bone hole after having been shaped with the chisel.

Corresponding reference numerals indicate corresponding parts throughout the several views of the drawings.

DETAILED DESCRIPTION

Example embodiments will now be described more fully with reference to the accompanying drawings.

The present teachings provide for various methods, devices, and systems for repairing soft tissue, such as tendons and ligaments for example, including an anterior cruciate ligament (ACL). Exemplary soft tissue is illustrated in FIGS. 15 and 16 at reference numeral 270, and described herein. With initial reference to FIG. 1, the soft tissue 270 can be attached to a bone 10. The bone 10 includes an outer or first cortical bone layer 12, a cancellous bone layer 14, and a second cortical bone layer 16. The cancellous bone layer 14 is a generally spongy bone layer that is between the first cortical bone layer 12 and the second cortical bone layer 16. The first and second cortical bone layers 12 and 16 are compact bone layers, which are more dense and harder than the spongy cancellous bone layer 14.

The present teachings provide for a drill guide 20 including a main body 22 with a handle 24 extending therefrom. The main body 22 defines a bore 26 extending through the main body 22. The bore 26 is configured to receive and direct a first guide wire 30 to the bone 10 for insertion into the bone 10. The first guide wire 30 can be inserted into the bone 10 such that the first guide wire 30 is generally perpendicular to an exterior surface of the bone 10.

With reference to FIG. 2, the first guide wire 30 includes a distal end 32, which can be pointed and sharpened to facilitate insertion of the first guide wire 30 into the bone 10. Extending from the distal end 32 is a toothed or threaded portion 34, which further facilitates cutting the bone 10. At a side of the first guide wire 30 opposite to the distal end 32 is a proximal end 36. The proximal end 36 is configured to be coupled to any suitable driving device, such as a powered driver, to facilitate insertion of the first guide wire 30 into the bone 10. The first guide wire 30 is configured to be inserted into the bone 10 in order to form a first hole 38 in the bone 10. The first guide wire 30 can be inserted through each of the first cortical bone layer 12, the cancellous bone layer 14, and the second cortical bone layer 16, such that the distal end 32 protrudes out from within the second cortical bone layer 16 as illustrated in FIG. 2.

With additional reference to FIG. 3, a chisel, such as a socket chisel, according to the present teachings is illustrated at reference numeral 50. The chisel 50 generally includes a first end 52 and a second end 54, which is opposite to the first end 52. Proximate to the first end 52 is a handle portion 56. Extending from the handle portion 56 to the second end 54 is a stem portion 58. At the second end 54, the stem portion 58 includes a chisel tip 60, which can be configured in any suitable manner to permit the chisel tip 60 to cut and shape the bone 10 as described herein. For example, the chisel tip 60 can include sharpened portions at the second end 54.

The chisel 50 defines a first bore 62 and a second bore 64, each extending between the first end 52 and the second end 54. The first and the second bores 62 and 64 extend generally parallel to one another. The first bore 62 is configured to receive the first guide wire 30, as illustrated in FIG. 3, in order to support the chisel 50 on the bone 10, such as at the first cortical bone layer 12, so that the chisel tip 60 abuts the first cortical bone layer 12. The second bore 64 is configured to receive a second guide wire 70 and direct the second guide wire to the bone 10. The second guide wire 70 is the same as, or substantially similar to, the first guide wire 30, but the second guide wire 70 can be longer than the first guide wire 30 as illustrated in FIG. 4.

With continued reference to FIG. 4, the second guide wire 70 includes a distal end 72, which can be pointed and sharpened to facilitate insertion of the second guide wire 70 through the bone 10. Extending from the distal end 72 is a sharpened or threaded portion 74, which can further facilitate insertion of the second guide wire 70 into the bone 10. Opposite to the distal end 72 is a proximal end 76. The proximal end 76 can be coupled to any suitable driving device in order to insert the second guide wire 70 into the bone 10. The second guide wire 70 can be inserted into the bone 10 such that the second guide wire 70 extends completely through the bone 10 with the distal end 72 protruding from the second cortical bone layer 16, such that the second guide wire 70 defines a second hole 80, which is generally parallel to the first hole 38.

With reference to FIG. 5, the chisel 50 is removed from cooperation with the first and second guide wires 30 and 70, and the bone is cut and shaped in any suitable manner in order to connect the first and second holes 38 and 80 at least at proximate ends thereof in the area of the first cortical bone layer 12 such that the first and second holes 38 and 40 overlap. For example and as illustrated in FIG. 5, the bone 10 can be cut and shaped with a reamer 90. The reamer 90 can be any suitable reamer, can include a reamer tip 92, and can define a reamer bore 94 extending through the reamer 90.

The bone 10 can be reamed in any suitable manner, such as by inserting the reamer 90 over each one of the first guide wire 30 and the second guide wire 70, through the first cortical bone layer 12, and slightly into the cancellous bone layer 14. With reference to FIG. 6, reaming provides the first hole 38 with a reamed first proximal portion 110, and provides the second hole 80 with a reamed second proximal portion 112. The reamed first and second proximal portions 110 and 112 are connected to one, such that the portions 110 and 112 overlap for example, another to provide an enlarged opening in the bone 10 to receive a tendon to be repaired, as explained in detail herein.

With reference to FIG. 7, after the bone 10 has been reamed, the chisel 50 is reinserted over the first and second guide wires 30 and 70 such that the first guide wire 30 extends through the first bore 62 and the second guide wire 70 extends through the second bore 64. The chisel tip 60 is positioned such that it abuts an outer surface of the first cortical bone layer 12 prior to being impacted into the bone, as illustrated in FIG. 8.

The chisel 50 can be impacted into the bone 10 in any suitable manner, such as with a mallet 120. The chisel 50 is impacted such that the chisel tip 60 passes through the first cortical bone layer 12 and into the cancellous bone layer 14. After the chisel tip 60 reaches the cancellous bone layer 14, the chisel 50 may be pushed further into the bone 10 by hand. The chisel 50 may be pushed to any suitable depth, such as until the chisel tip 60 reaches the second cortical bone layer 16. The chisel 50 is then removed from within the bone 10. As illustrated in FIG. 10, moving the chisel 50 into the bone 10 cuts and shapes the bone 10 to provide a single, elongate, bone bore 114 having a cross-sectional shape corresponding to a cross-sectional shape of the soft tissue 270.

With additional reference to FIG. 11A, an inserter 150 according to the present teachings is illustrated. The inserter 150 generally includes a handle 152 and an insertion rod 154 extending therefrom. The insertion rod 154 includes a distal tip 156, which is at an end of the insertion rod 154 opposite to the handle 152. The inserter 150 further includes a trigger 160, an actuation rod 162, and a safety 164. The trigger 160 is configured to move the actuation rod 162 longitudinally such that the actuation rod 162, which extends from the handle through the insertion rod 154 to the distal tip 156, protrudes from the distal tip 156 upon the trigger 160 being pressed. The safety 164 can be any suitable safety mechanism for restricting movement of the trigger 160 and the rod 162, such as a button or actuation member arranged generally perpendicular to the trigger 160.

With continued reference to FIG. 11A, and additional reference to FIG. 11B, the present teachings further provide for a first suture construct 210, which is mounted to the inserter 150 in FIG. 11A. In FIG. 11B, the first suture construct 210 is illustrated apart from the inserter 150. The first suture construct 210 generally includes a suture strand 212, and both an anchor 214 and a needle 218 coupled thereto. The suture strand 212 can be any suitable type of suture, such as a braided hollow-core suture. Any suitable braided suture can be used, such as any of the braided sutures disclosed in U.S. patent application Ser. No. 12/915,962 titled Method and Apparatus for Securing Soft Tissue to Bone, which was filed on Oct. 29, 2010, published as Publication No. 2011/0098727 on Apr. 28, 2011, issued as U.S. Pat. No. 8,562,647 on Oct. 22, 2013, is assigned to Biomet Sports Medicine, LLC, and is incorporated by reference herein.

The suture strand 212 includes a first end 220 and a second end 222. The braided hollow-core suture strand 212 defines a passage extending from the first end 220 to the second end 222. The suture strand 212, and specifically the passage thereof, includes a first passage portion 230 defining a first passageway 232, and a second passage portion 234 defining a second passageway 236. The suture strand 212 defines a first opening 230A and a second opening 230B at opposite ends of the first passage portion 230. The suture strand 212 also defines a first opening 234A and a second opening 234B at opposite ends of the second passage portion 234.

The suture strand 212 is arranged to define a first adjustable loop 224 and a second adjustable loop 226. Specifically, the suture strand 212 is arranged such that the suture strand 212 (such as the second end 222) extends into the first passage portion 230 through the first opening 230A, and out from within the first passage portion 230 through the second opening 230B to define the first adjustable loop 224. The suture strand 212 (such as the second end 222) further extends into the second passage portion 234 through the first opening 234A, and out from within the second passage portion 234 through the second opening 234B to define the second adjustable loop 226. Both the first adjustable loop 224 and the second adjustable loop 226 extend through a passageway 240 defined by the anchor 214. Portions of the suture 212 defining the first and the second adjustable loops 224 and 226 are slidably movable through the passageway 240 of the anchor 214.

The anchor 214 can be any suitable anchor, such as a soft anchor including a braided body 246. Exemplary anchors are set forth in U.S. application Ser. No. 13/098,927 titled “Method and Apparatus for Soft Tissue Fixation,” filed on May 2, 2011, issued as U.S. Pat. No. 8,652,171 on Feb. 18, 2014, and assigned to Biomet Sports Medicine, LLC, which is incorporated herein by reference; as well as in U.S. Pat. No. 8,562,647 titled “Method and Apparatus for Securing Soft Tissue to Bone,” issued on Oct. 22, 2013, and assigned to Biomet Sports Medicine, LLC, which is incorporated herein by reference.

The needle 218 can be connected to the suture strand 212 in any suitable manner. For example, the suture strand 212 can extend through an aperture defined by the needle 218. As illustrated in FIG. 11A, the needle 218 can be seated in a protector, such as foam 248.

The suture construct 210 is coupled to the inserter 150 such that the anchor 214 is arranged at the distal tip 156 of the insertion rod 154. The first adjustable loop 224 and the second adjustable loop 226, as well as the first and second ends 220 and 222, extend into the insertion rod 154. The needle 218, which is seated in the foam 248, is arranged at or in the handle 152, and the foam 248 is secured to the handle 152 in any suitable manner.

With the insertion rod 154 of the inserter 150 seated within the first bore 62 of the chisel 50, the anchor 214 can be implanted against the second cortical bone layer 16. Specifically, the distal tip 156 of the insertion rod 154 is inserted through the first bore 62 of the chisel 50 until the handle 152 of the inserter 150 contacts the first end 52 of the chisel 50. In this manner, the chisel 50 controls the depth that the anchor 214 is seated in the bone 10. Thus when the handle 152 contacts the first end 52 of the chisel 50, the anchor 214 is arranged at the second cortical bone layer 16. To deploy and implant the anchor 214, the trigger 160 is pressed after the safety 164 is released. Pressing the safety 164 into the handle 152 allows the trigger 160 to be axially pressed into the handle 152. Upon pressing the trigger 160 into the handle 152, the rod 162, which is coupled to the trigger 160, is moved longitudinally in order to push the anchor 214 off of the distal tip 156 of the insertion rod 154, as generally illustrated in FIG. 12.

With reference to FIG. 13, after the anchor 214 has been pushed out from within the distal tip 156 of the insertion rod 154 by the actuation rod 162, the first and second ends of the first suture construct 210, as well as the foam 248 and the adjustable loops 224 and 226, are decoupled from the handle 152. The first suture construct 210 is then slid out from within the chisel 50 through a radially extending slot 250 defined by the chisel 50. In order to deploy the anchor 214, the second end 222 is pulled, which closes the first and the second adjustable loops 224 and 226 to draw the anchor 214 against, and in some cases inside (such as partially inside), the second cortical bone layer 16 such that the anchor 214 folds into a ball or knot as illustrated in FIG. 13.

With reference to FIG. 14, a second suture construct 210′ is illustrated in accordance with the present teachings. The second construct 210′ is substantially similar to, or the same as, the first suture construct 210. Therefore, the same reference numbers are used to identify the features in common, with the features of the second suture construct 210′ including the prime (′) symbol.

The second suture construct 210′ is coupled to an inserter 150′, which can be substantially similar to the inserter 150. Features in common between the inserters 150 and 150′ are illustrated with the same reference numbers. Features of the inserter 150′ include the prime (′) symbol. The inserter 150′ with the second suture construct 210′ is inserted into the second bore 64 of the chisel 50 in order to implant an additional anchor 214′ at the second cortical bone layer 16. The second suture construct 210′ is decoupled from the inserter 150′ in the same manner that the first suture construct 210 is decoupled from the inserter 150 and the anchor 214′ is deployed in the same manner as described above for the anchor 214.

With reference to FIG. 15A, the soft tissue 270 to be secured to the bone 10 within the bone bore 114 is illustrated at reference numeral 270. The first and second suture constructs 210 and 210′ are secured to the soft tissue 270 in any suitable manner. For example, the first suture construct 210 is coupled to the soft tissue 270 by inserting the needle 218, which can be a first needle 218, through the soft tissue 270 and threading the suture strand 212 through the soft tissue 270 as many times as appropriate. The second suture construct 210′ is coupled to the soft tissue 270 in the same or similar manner using the needle 218′, which can be a second needle 218′. The first and second suture constructs 210 and 210′ can then secured together in any suitable manner, such as with a knot 272. Excess portions of the first and second suture constructs 210 and 210′, such as portions beyond the knot 272 and proximate to the first and second needles 218 and 218′, can be removed in any suitable manner, such as by being cut. With reference to FIG. 15B, the anchors 214 and 214′ can be inserted and secured within a single hole 18 of the second cortical bone layer 16, which can be made in any suitable manner, such as by reaming over a single one of the guide wires 30/70.

With reference to FIG. 16A, the soft tissue 270 is pulled into the bone bore 114 by pulling the second end 222 of the first suture construct 210 in order to close the first and the second adjustable loops 224 and 226, as well as by pulling the second end and 222′ of the second suture construct 210′ in order to close the first and second adjustable loops 224′ and 226′. In this manner, the soft tissue 270 is securely retained within the single bone bore 114 to attach the soft tissue 270 to the bone 10. The soft tissue 270 can be any suitable soft tissue, such as any suitable tendon or ligament including the following: anterior cruciate ligament (ACL); medial patellofemoral ligament (MPFL); flexor hallucis longus tendon; biceps tendon (such as distal); anterior tibial fibular ligament (lateral ankle); calcaneal fibular ligament (lateral ankle); spring ligament; and flexor and extensor tendons of the hand and foot.

With reference to FIG. 16B, the soft tissue 270 may also be retained within the bone 10 using a first suture construct 410 and a second suture construct 410′. The first and second suture constructs 410 and 410′ can be substantially similar to one another or the same. Thus, only the first suture construct 410 will be described. The description of the first suture construct 410 also applies to the second suture construct 410′, and like features will be illustrated with the same reference numbers with the features of the second suture construct 410′ including the prime (′) designation. The first suture construct 410 includes a suture 412. The suture 412 may be any suitable suture, such as a braided hollow-core suture similar to the suture 212 of the suture construct 210. The suture 412 includes a first end 414 and a second end 416, which is opposite to the first end 414. The suture 412 extends through an anchor 418, which is positioned between the first end 414 and the second end 416. The anchor 418 can be generally similar to, or the same as, the anchor 214 of the suture construct 210. Thus, the anchor 418 defines a passageway through which the suture 412 extends.

The anchor 418 of the first suture construct 410 can be inserted through the second cortical bone layer 16 in any suitable manner, such as by using the inserter 150 as described above. The suture 412 can be coupled to the soft tissue 270 in any suitable manner, such as by threading the first end 414, or as illustrated the second end 416, through the soft tissue 270. The second suture construct 410′ can be secured to the tissue 270 in a similar manner. As illustrated in FIG. 16B, the second ends 416 and 416′ can be connected together with a knot 430. To draw the soft tissue 270 into the bone bore 114, the first ends 414 and 414′ are pulled as illustrated in FIG. 16B, which pulls portions of the sutures 212 and 212′ through the anchors 418 and 418′. As the soft tissue 270 is pulled into the bone bore 114, the anchors 418 and 418′ are collapsed against the second cortical bone layer 16 to secure the anchors 418 and 418′ in place. To retain the soft tissue 270 within the bone bore 114, the first ends 414 and 414′ can be cut and tied together.

With additional reference to FIG. 16C, the first and the second suture constructs 210 and 210′ can be used to secure a first soft tissue 270A and a second soft tissue 270B into the single bone hole 114. The first and the second suture constructs 210 and 210′ can include the anchors 214 and 214′, or can include anchors taking the form of toggle locks 440 and 440′ as illustrated. The first and the second suture constructs 210 and 210′ can be used to secure the soft tissue 270A and 270B within the single bone hole 114 in the same manner described above. The soft tissue 270A and 270B can be any suitable soft tissue, as described above.

The suture constructs described herein, such as the suture constructs 210 and 410, are self-locking suture constructs configured to secure the soft tissue 270 without the need to tie a knot. To tension and secure the tissue 270 using the suture construct 210, only the second end 222 need be pulled, which closes the first and second loops 224 and 226, and pulls the anchor 214 against the cortical bone 16 to collapse the passageway 240 of the anchor 214 onto the first and second loops 224 and 226 to prevent the first and second loops 224 and 226 from re-opening. To tension and secure the tissue 270 using the suture construct 410, only the first end 414 need be pulled, which draws the second end 414 and the soft tissue 270 stitched thereto towards the anchor 418, and pulls the anchor 418 against the cortical bone 16 to collapse the anchor 418 onto the suture 412 to prevent the suture 412 from moving back through the anchor 418.

With reference to FIGS. 17-24, another method for repairing a tendon according to the present teachings is illustrated. With initial reference to FIG. 17, a preliminary or first guide wire 280 is illustrated. The preliminary guide wire 280 includes a distal end 282 with teeth 284 proximate thereto. The teeth 284 facilitate insertion of the preliminary guide wire 280 into the bone 10 to form a bone hole 290. The preliminary guide wire 280 is inserted through the first cortical bone layer 12 and into the cancellous bone layer 14.

As illustrated in FIG. 18, the chisel 50 is inserted over the preliminary guide wire 280 such that the preliminary guide wire 280 is seated in either the first bore 62 or the second bore 64. As illustrated in FIG. 18, the preliminary guide wire 280 is seated in the second bore 64, thus leaving the first bore 62 open in order to receive the first guide wire 30 therethrough, and to direct the first guide wire 30 to the bone 10 as illustrated in FIG. 18. The first guide wire 30 is inserted into the bone 10 in any suitable manner, such as by drilling, such that the first guide wire 30 extends through the first cortical bone layer 12, through the cancellous bone layer 14, and through the second cortical bone layer 16 such that the distal end 32 of the first guide wire 30 slightly protrudes out from within the second cortical bone layer 16.

With reference to FIG. 19, after the first guide wire 30 has been inserted into the bone 10, the chisel 50 is repositioned such that the preliminary guide wire 280 is seated in the first bore 62 of the chisel 50. Thus the second bore 64 is free to receive and guide the second guide wire 70 to the bone 10. Specifically, the second guide wire 70 is inserted in any suitable manner, such as by drilling, so that the second guide wire 70 extends through the first cortical bone layer 12, the cancellous bone layer 14, and the second cortical bone layer 16. The distal end 72 of the second guide wire 70 slightly protrudes out from within the second cortical bone layer 16 as illustrated in FIG. 19.

With reference to FIG. 20, the chisel 50 is removed and the bone 10 is reamed with the reamer 90 over the first guide wire 30, the preliminary guide wire 280, and the second guide wire 70 to form the reamed first proximal portion 110, the reamed second proximal portion 112, and a reamed proximal portion 292 of bone hole 290 formed by the preliminary guide wire 280 (see FIG. 21). Because the first and second guide wires 30 and 70 are spaced further apart as compared to when the first and second guide wires 30 and 70 are simultaneously inserted through the first and second bores 62 and 64 as described above, such as in the description of FIG. 4, the reamed portion 110, 112, and 292 of the bone 10 is wider in order to accommodate a wider tendon.

After the bone 10 has been reamed, the chisel 50 is individually inserted over each of the first guide wire 30 and second guide wire 70, as illustrated in FIGS. 22 and 23 respectively, and the chisel 50 is impacted into the bone 10 in any suitable manner, such as with a mallet 120. The chisel 50 is impacted through the first cortical bone layer 12, and then can be pushed through the cancellous bone layer 14 until the chisel tip 60 of the chisel 50 contacts the second cortical bone layer 16. With reference to FIGS. 23 and 24, a single elongated bone bore 294 is formed, which is generally wider than the single bone bore 114 formed as described above. The first and second suture constructs 210 and 210′ are implanted in the bone bore 294 in the same manner described above, and are coupled to the soft tissue 270 as described above in order to draw the wider soft tissue 270 into the bone bore 294.

FIGS. 25-30 illustrate an additional method according to the present teachings. With reference to FIG. 25, the preliminary guide wire 280 is inserted into the bone 10 as described above in the description of FIG. 17. With reference to FIG. 26, the bone 10 is reamed over the preliminary guide wire 280 in any suitable manner, such as with the reamer 90 described above. The bone 10 is reamed to form a reamed bone hole 300, which extends through the first cortical bone layer 12 and into the cancellous bone layer 14.

With reference to FIGS. 27A and 27B, an additional drill guide according to the present teachings is illustrated at reference numeral 310. The drill guide 310 generally includes a main body 320 having a first end 322 and a second end 324, which is opposite to the first end 322. Extending from the second end 324 is a center post 326. The main body 320 defines a first drill bore 330 and a second drill bore 332. The first and second drill bores 330 and 332 extend between the first end 322 and the second end 324 of the main body 320. The center post 326 is laterally offset from the first and the second drill bores 330 and 332.

After the preliminary guide wire 280 is removed from within the bone 10, the drill guide 310 is positioned such that the center post 326 thereof extends and nests into the reamed bone hole 300. The first and second guide wires 30 and 70 are inserted into the first drill bore 330 and the second drill bore 332 respectively, which guide the first and second guide wires 30 and 70 into the bone 10. As illustrated in FIG. 28 for example, the first and second guide wires 30 and 70 are positioned such that the distal ends 32 and 72 thereof extend out from within the second cortical bone layer 16, and the drill guide 310 is removed.

The bone 10 is reamed over the first and second guide wires 30 and 70 as explained above to form the reamed first proximal portion 110 and the reamed second proximal portion 112, with the reamed bone hole 300 therebetween. With reference to FIGS. 29 and 30, a chisel 350 with a chisel tip 352 that is curved to approximate the positions of the reamed portions 110, 112, and 300 of the bone 10 is inserted into the reamed portions 110, 112, and 300 and through the cancellous bone layer 14 to the second cortical bone layer 16. As illustrated in FIG. 30, the chisel 350 shapes the reamed portions 110, 112, and 300 and defines a bone hole 360 extending through the bone 10 to the second cortical bone layer 16, which is configured to accommodate soft tissue 270. The first and second suture constructs 210 and 210′ are implanted in the bone hole 350 in the same manner described above, and are coupled to the soft tissue 270 as described above in order to secure the soft tissue 270 within the bone hole 350.

The chisel 350 and the chisel tip 352 thereof can have any suitable shape, such as any suitable cross-sectional shape depending on the particular surgical application. For example, the chisel 350 can have a curved cross-sectional shape as illustrated, a straight shape, or a triangular shape to chisel three tunnels drilled in an adjoining triangular shape. Forming multiple bone holes and/or bone holes that do not have a continuously circular shape, such as slotted bone holes (including the bone holes 300) or bone holes having different pockets due to being drilled in an adjoining triangular configuration, provides numerous advantages. For example, with respect to an ACL single bundle replacement, two separate holes advantageously cause the ligament to stay broad rather than bunching to one side of a single hole. With respect to an ACL double bundle with a single pocket (as illustrated in FIG. 16C for example), an additional advantage is realized in that the anterior medial and posterior lateral bundles remain separate and distinct. With respect to a medial patellofemoral ligament (MPFL) replacement, it is advantageous to have a slotted tunnel large enough to have an adequate cross-sectional area of graft inserted.

The foregoing description of the embodiments has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same may also be varied in many ways. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure. 

What is claimed is:
 1. A method for repairing soft tissue comprising: forming a first bone hole; forming a second bone hole; connecting a first portion of the first bone hole to a second portion of the second bone hole to form a single bone bore; positioning at least a first anchor of a first suture construct at a distal end of the first bone hole, and positioning a second anchor of a second suture construct at a distal end of the second bone hole; connecting the first and the second suture constructs to the soft tissue; and drawing the soft tissue into the single bone bore with the first and the second suture constructs.
 2. The method of claim 1, further comprising guiding a first guide wire to the bone with a drill guide to form the first bone hold, and guiding a second guide wire to the bone with a bore defined by a chisel to form the second bone hole.
 3. The method of claim 2, further comprising: forming a third bone hole between, and laterally spaced apart from, the first and the second bone holes; inserting a third guide wire in the third bone hole; and mounting the chisel to the third guide wire.
 4. The method of claim 1, further comprising guiding a first guide wire to the bone with a first bore of a chisel to form the first bone hole; and guiding a second guide wire to the bone with a second bore of the chisel to form the second bone hole.
 5. The method of claim 4, further comprising: moving a first insertion rod of a first inserter, with the first anchor at a distal tip of the first insertion rod, through the first bore of the chisel and through the first bone hole to position the first anchor at the distal end of the first bone hole; and moving a second insertion rod of a second inserter, with the second anchor at a distal tip of the second insertion rod, through the second bore of the chisel and through the second bone hole to position the second anchor at the distal end of the second bone hole.
 6. The method of claim 1, further comprising shaping the first and second portions of the first and the second bone holes with a chisel to approximate a shape of the soft tissue.
 7. The method of claim 1, wherein the soft tissue includes: an anterior cruciate ligament (ACL); medial patellofemoral ligament (MPFL); flexor halluces longus tendon; biceps tendon; anterior tibial fibular ligament; calcaneal fibular ligament; spring ligament; or flexor and extensor tendons of the hand and foot.
 8. A method for repairing soft tissue comprising: inserting a first guide wire in a bone to define a first bone hole; inserting a second guide wire in the bone proximate to the first guide wire to define a second bone hole proximate to the first bone hole; enlarging a proximal portion of each of the first bone hole and the second bone hole such that the proximal portions of the first and the second bone holes are connected; positioning a first anchor of a first suture construct at a distal end of the first bone hole, and positioning a second anchor of a second suture construct at a distal end of the second bone hole; connecting a first suture of the first suture construct to a first portion of soft tissue, and connecting a second suture of the second suture construct to a second portion of soft tissue; and drawing the first and second portions of soft tissue into the proximal portions of each of the first and second bone holes by pulling a first end of the first suture construct to close a first loop of the first suture construct, and by pulling a second end of the second suture construct to close a second loop of the second suture construct; wherein the first and the second portions of soft tissue are portions of separate pieces of tissue or portions of a single piece of tissue.
 9. The method of claim 8, further comprising enlarging the proximal portion of each of the first bone hole and the second bone hole with a reamer.
 10. The method of claim 8, further comprising shaping the proximal portion of each of the first bone hole and the second bone hole with a chisel.
 11. The method of claim 8, wherein the proximal portions of the first and the second bone holes are directly connected.
 12. The method of claim 8, further comprising inserting a third guide wire in the bone to define a third bone hole; and enlarging a proximal portion of the third bone hole to connect the third bone hole to the proximal portions of each of the first and the second bone holes such that the proximal portions of each of the first and the second bone holes are connected by way of the proximal portion of the third bone hole.
 13. The method of claim 8, further comprising: guiding the first guide wire to the bone by inserting the first guide wire through a first bore defined by a chisel; guiding the second guide wire to the bone by inserting the second guide wire through a second bore defined by the chisel; and shaping the proximal portion of each of the first bone hole and the second bone hole with the chisel to correspond to a shape of the soft tissue.
 14. The method of claim 13, further comprising supporting the chisel at the bone with a preliminary guide wire inserted into the bone prior to inserting the first guide wire and the second guide wire into the bone.
 15. The method of claim 8, further comprising inserting the first and the second guide wires such that they extend through a first cortical bone layer, a cancellous bone layer, and a second cortical bone layer.
 16. The method of claim 15, further comprising implanting the first anchor and the second anchor at the second cortical bone layer.
 17. A method for repairing soft tissue comprising: forming a bone hole extending through a first cortical bone layer, a cancellous bone layer, and a second cortical bone layer on a side of the cancellous bone layer opposite to the first cortical bone layer; expanding a diameter of the formed bone hole at the first cortical bone layer and the cancellous bone layer only; positioning a first anchor of a first suture construct at a distal end of the bone hole beyond the second cortical bone layer; positioning a second anchor of a second suture construct at a distal end of the bone hole beyond the second cortical bone layer; connecting the first and the second suture constructs to soft tissue; drawing the soft tissue into the bone hole by pulling a first end of the first suture construct and by pulling a second end of the second suture construct.
 18. The method of claim 17, wherein connecting the first and the second suture constructs to soft tissue includes connecting the first suture construct to a first soft tissue and connecting the second suture construct to a second soft tissue that is separate from the first soft tissue.
 19. The method of claim 17, wherein connecting the first and the second suture constructs to soft tissue includes connecting both the first suture construct and the second suture construct to a single tissue.
 20. The method of claim 17, wherein the soft tissue includes: an anterior cruciate ligament (ACL); medial patellofemoral ligament (MPFL); flexor hallucis long us tendon; biceps tendon; anterior tibial fibular ligament; calcaneal fibular ligament; spring ligament; or flexor and extensor tendons of the hand and foot.
 21. The method of claim 17, wherein pulling the first end of the first suture construct includes pulling a portion of the first suture construct through the first anchor, and pulling the second end of the second suture construct includes pulling a portion of the second suture construct through the second anchor.
 22. The method of claim 17, wherein pulling the first end of the first suture construct closes a first loop and a second loop of the first suture construct; and pulling the second end of the second suture construct closes a first loop and a second loop of the second suture construct. 